Spinatrypina Rzhonsnitskaya, 1964
publication ID |
https://doi.org/ 10.5281/zenodo.13742176 |
persistent identifier |
https://treatment.plazi.org/id/4836037D-D661-6C49-FFBF-D483FD10F925 |
treatment provided by |
Felipe |
scientific name |
Spinatrypina Rzhonsnitskaya, 1964 |
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Genus Spinatrypina Rzhonsnitskaya, 1964 View in CoL Spinatrypina douvillei ( Mansuy, 1912)
Fig. 10A, B View Fig .
1912 Atrypa Douvillei View in CoL nov. sp.; Mansuy 1912: 74, pl. 13: 9a–h.
1931 Atrypa douvillii Mansuy ; Grabau 1931: 194–197, pl. 15: 15, pl. 22: 5–10.
1938 Atrypa douvillii Mansuy ; Tien 1938: 95–97, pl. 13: 5–10, 13.
1983 Spinatrypina douvillii (Mansuy) ; Chen 1983: 316, pl. 31: 3–5.
Material.—About 50 poorly preserved shells, valves, and fragments from the Early Frasnian of the Caiziyan section (samples GC 8–9, GC 20, and GC 21–24). Three complete shells from the?Middle Frasnian of the Panxi section (sample PY5).
Discussion.—The specimen of Fig. 10A View Fig is a heavily exfoliated, weakly convex dorsal valve, with about 40–45 ribs (approximately 19.0 mm wide, 16.5 mm long, exact rib number is uncertain), with about 6 ribs per 5 mm near the anterior. Another figured specimen ( Fig. 10B View Fig ) is also a dorsal valve, which is subrounded in outline, slightly convex, with about (5–) 6 ribs per 5 mm at anterior margin (around 30–35 ribs on whole surface; size is about 17.0 mm wide, 13.9 mm long).
The outline, dorsal valve convexity, and nature of ribbing are basically in agreement with Spinatrypina douvillei ( Mansuy, 1912) and material described by subsequent workers from South China (e.g., Chen 1983) [see Grabau (1931: 194) for an English translation of Mansuy’s original French description]. Grabau (1931: 194) changed the name douvillei (to honor M.H. Douvillé by Mansuy 1912) to douvillii without giving any reasons, which has since been followed by subsequent workers, such as Tien (1938), Wang et al. (1964), and Chen (1983).
Occurrence.—Same as the previous species in geographic and stratigraphic distribution. The studied specimens are from the
Caiziyan and Panxi sections ( Fig. 2 View Fig ), correlated with the Palmatolepis transitans – Pa. punctata conodont zones.
GC |
Goucher College |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Spinatrypina Rzhonsnitskaya, 1964
Ma, Xue-Ping, Becker, Ralph Thomas, Li, Hua & Sun, Yuan-Yuan 2006 |
Spinatrypina douvillii (Mansuy)
Chen, Y. - R. 1983: 316 |
Atrypa douvillii
Tien, C. C. 1938: 95 |
Atrypa douvillii
Grabau, A. W. 1931: 194 |
Atrypa
Mansuy, H. 1912: 74 |